using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;


internal class Program
{
    private static void Main(string[] args)
    {
        var n = new InfiniteCollection<string>("asdf");
        foreach (var value in n.Take(5))
        {
            Console.WriteLine(value);
        }
    }
}

class InfiniteCollection<T> : IEnumerable<T>
{
    private T _value;

    public InfiniteCollection(T value)
    {
        _value = value;
    }

    public IEnumerator<T> GetEnumerator()
    {
        return new InfiniteEnumerator<T>(_value);
    }

    IEnumerator IEnumerable.GetEnumerator()
    {
        return GetEnumerator();
    }

    private class InfiniteEnumerator<T>:IEnumerator<T>
    {
        public InfiniteEnumerator(T value)
        {
            Current = value;
        }
        public void Dispose()
        {
            return;
        }

        public bool MoveNext()
        {
            return true;
        }

        public void Reset()
        {
           return;
        }

        public T Current { get; }

        object IEnumerator.Current
        {
            get { return Current; }
        }
    }
}